METAGLAS® Type 99.KF — High Vacuum Metal-Fused Sight Glass
The METAGLAS® Type 99.KF is a compact, high-integrity metal-fused sight glass
engineered for high vacuum and pressure applications. Its robust design ensures zero outgassing,
no contamination of sensitive systems, and long-term reliability under demanding operating conditions.
Performance & Construction
No Outgassing: Exhibits zero measurable outgassing, protecting vacuum integrity and purity.
Contamination-Free: Will not release particulates or volatiles into process systems.
Metal-Fused Glass: Borosilicate glass fused directly into a stainless-steel ring for maximum strength.
Compact Geometry: Designed for installations where space and envelope constraints matter.
Installation: Easy, instruction-free installation with no special tools required.
Operating Range: Suitable for high vacuum environments and pressure applications.
Reliability: Security against total failure due to permanent compressive pre-stress.
Service Life: Engineered for long-term operation with minimal maintenance.
Applications
High vacuum chambers and UHV systems
Semiconductor processing equipment
Leak detection and vacuum test rigs
Laboratory research and instrumentation
Chemical and pharmaceutical systems requiring contamination-free visibility
Pressure vessels with compact sight port requirements
Key Advantages:
Zero outgassing — ideal for vacuum purity
Non-contaminating and chemically inert
Ultra-compact, robust construction
Fail-safe METAGLAS® mechanical durability
Suitable for both vacuum and positive pressure applications
Long working time with no degradation of clarity
Specify size, vacuum level, pressure range, material options, and seal configuration when ordering.
John Moncrieff Ltd will supply Type 99.KF configured for your vacuum or high-pressure system
with full QA documentation.
